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(No Model.)

E. MAJOR.

ELASTIC COUPLING FOR STEAM PIPES.

No. 335,371. Patented Feb. 2, 1886.

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UNITED STATES PATENT UEEicE.

EMANUEL MAJOR, OF ROCHESTER, NEV YORK.

ELASTIC COUPLING FOR STEAM-PIPES.

SPECIFICATION forming part of Letters Patent N0. 335,371, dated February2, 1 886.

Application filed September 28, 1885. Serial No. 178,450. (No model.)

To all whom, it may concern:

Be it known that I, EMANUEL MAJOR, of Rochester, in the county of Monroeand State of New York, haveinvented a new and useful Improvement inElastic Couplings for Steam- Pipes, which improvement is fully set forthin the following specification, and shown in the accompanying drawings.

The object of myinvention is to producean elastic or yielding expansioncoupling or connection for steam-pipes, the same being an imperforateinclosure, with elastic walls and withoutjoints, said invention beingfully de scribed in the following specification, and more particularlypointed out in the claims.

Referring to the drawings, Figure I is an elevation of my improvedelastic pipe coupling or connection with portions of the con nectedsteam-pipe, a part of said coupling being broken away and radiallysectional to disclose the interior thereof and the manner of connectingthe steam-pipes therewith, a part of the ornamental band being alsobroken away, parts of the coupling being shown as in various conditionsof expansion and compression by dotted lines; Fig. II, a view showingthe adaptation of steam pipe provided with said elastic couplings to thefloors of a building; and Fig. III, a plan of the coupling seen asindicated by arrow in Fig. I, the up per steam-pipe being transverselysectioned as upon the dotted line 2 therein.

Referring to the parts, A is the coupling or connection for thesteam-pipes B, which coupling is made circular in plan and formed withcentral concentric openings, 1), at the opposite sides, which openingsare internally threaded to receive the threaded ends of said steampipes.This coupling is preferably made of an elastic metalas planished copperor castbrassand the form substantially that of an oblate spheroidconsiderably flattened, with the pipes entering at the two flattenedsides 9 h, respectively, in the line of the axis of the body. Theperiphery of this coupling (at i) I prefer to make substantiallycircular in radial longitudinal section, as shown, and coinpress thewalls of the flattened sides at f and 0 between said circular part andthe openings at the center, which form is favorable to the yielding ofthe shell or wall of the coupling to strains exerted in a direction atright angles to the plane of the same or in the line of the axis of thepipes. The openings 1) are each surrounded by a thick ring of metal, a,to strengthen the coupling at those points and to form sufficientlybroad bearing-surfaces for the threaded steam-pipes. These rings orthick ened parts are made hexagon shape at their peripheries, to receivea wrench by which to turn them onto the pipes.

The coupling is cast or made otherwise in a single piece, andconsequently has no joints to be packed or to leak. The shell of thecoup ling being elastic, the latter maintains its form while theconnected sections of pipes are permitted to vary in length as theirtein ieraturc changes.

These couplings or connections a re most useful when lines of pipe ofconsiderable length are put up, either vertical or horizontal. Acoupling being placed between the ends of adjacent lengths allows thewhole pipe to freely expand and contract without straining or looseningthe joints between said lengths.

I prefer to place an ornamental fringe, O, of some suitable style aroundthe periphery of the coupling, as shown. If'the coupling be located nearthe surface of the floor this fringe is placed to depend therefrom; butif said coupling be placed next the ceiling the ornamental band will bedirected upward for the coupling.

The device shown in Fig. II represents a steam-pipe for supplyingradiators, passed up through several stories of a building. The lateralpipes leading to the radiators are to be joined to the vertical pipe atany convenient point.

These couplings are as well adapted to be used with hot and cold waterpipes or hot and cold air pipes as with steam-pipes.

The compressing of the walls of the coupling at e and f forms concentriccurves in the opposing plates 9 and h of the shell.

What I claim as my invention is- 1. In combination with sections ofpipe, an elastic coupling for the same, forming a fiattened circularinclosure with opposing sides provided, respectively, withcentrallongitudinal orifices internally threaded to receive said pipes,said orifices being surrounded with ICO with axial longitudinal orificesinternally threaded to receive said pipes, said orifices beingsurrounded with masses formed to re- I 5 ceive a wrench, sidedepressions being formed causing the peripheral curve of the coupling tomeasure more than a semicircle on a radial line, substantially as shownand described.

E. MAJOR.

\Vitnesses:

E. B. WHITMORE, M. KENDRIOK.

